Impact of wind-induced resuspension on urban air quality: a CFD study with air quality data comparison
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F25%3APU156125" target="_blank" >RIV/00216305:26210/25:PU156125 - isvavai.cz</a>
Result on the web
<a href="http://nature.com/articles/s41612-025-00969-2" target="_blank" >http://nature.com/articles/s41612-025-00969-2</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1038/s41612-025-00969-2" target="_blank" >10.1038/s41612-025-00969-2</a>
Alternative languages
Result language
angličtina
Original language name
Impact of wind-induced resuspension on urban air quality: a CFD study with air quality data comparison
Original language description
Wind-induced particulate matter (PM) resuspension is an increasingly recognized contributor to urban air pollution. A CFD model of 2D street canyon geometry was developed that can replicate the process of resuspension. Model created the wind speed vs concentration increase due to resuspension relationship and its key properties: threshold wind speed causing resuspension (TWSR) and concentration increase. At least 8.75 m/s in 10 m height inlet wind speed before street canyons was needed to start the resuspension, leading to PM10 concentrations often exceeding 1 mu g/m(3), with peak values reaching as high as 3 mu g/m(3). The model can predict the behavior of resuspension well, but it cannot capture all the factors acting in the real environment to match precisely the air quality data. Silt load remains the greatest unknown factor in determining the overall magnitude of resuspension, with observed increases in PM10 concentrations up to 6 mu g/m(3) in air quality data.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10509 - Meteorology and atmospheric sciences
Result continuities
Project
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Continuities
S - Specificky vyzkum na vysokych skolach
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
npj Climate and Atmospheric Science
ISSN
2397-3722
e-ISSN
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Volume of the periodical
8
Issue of the periodical within the volume
1
Country of publishing house
GB - UNITED KINGDOM
Number of pages
14
Pages from-to
1-14
UT code for WoS article
001432671300003
EID of the result in the Scopus database
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